发明名称 |
INTERCHANGEABLE BEARING BLOCKS FOR DRILL BITS, AND DRILL BITS INCLUDING SAME |
摘要 |
A bearing block is provided that may be used with a drag bit body or frame to limit depth of cut of cutters on a bit. The bearing block is designed so that it may be interchangeably replaced or repaired without necessitating alteration to a standardized bit frame. The interchangeable bearing block may be used to provide a target depth of cut (TDOC) and/or a selected contact or rubbing area to support weight on bit and limit depth of cut (DOC) for improving drilling performance of a bit. The interchangeable bearing block brings manufacturing selectability by providing a customizable product in terms of depth of cut selection and cutter penetration control for different formations, which is suitable for use with a common bit frame. A rotary drill bit assembly, a unitary cone insert bearing block for a drill bit, and a bit frame are also provided. |
申请公布号 |
EP2171205(B1) |
申请公布日期 |
2013.12.11 |
申请号 |
EP20080771045 |
申请日期 |
2008.06.13 |
申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
ALIKO, ENIS;SCHWEFE, THORSTEN |
分类号 |
E21B10/42;E21B10/43 |
主分类号 |
E21B10/42 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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